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Currently, the group standard for "Raw Salmon" is published in a standard that clearly states that rainbow trout and others are classified as salmon. This standard has triggered a great deal of opinion, challenged by consumers, saying that China's farmed "domestic salmon" is actually rainbow trout, not what we usually call salmon. Rainbow trout is not authentic salmon and is likely to have parasites. But there are two schools of thought on this criterion.
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1, the first statement is in the Chinese market said salmon is the salmon trout class of commodities collectively, is not a kind of fish scientific name, so rainbow trout is salmon. For example, tuna, it contains bluefin tuna, yellowfin tuna, bigeye tuna, skipjack tuna, etc., so salmon is the same contains Pacific salmon, Atlantic salmon, rainbow trout and so on.
2, the second is what people usually call salmon, is the Atlantic salmon, is a kind of sea fish. Although and salmon with salmon trout, but salmon and rainbow trout English name is not the same, the English name of the salmon is "Salom", and rainbow trout's English name is "rainbow trout", so the common English name of salmon on the excludes rainbow trout.
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Quick way to identify salmon and rainbow trout
1, look at the skin. Look at the skin of the whole fish and see if there is a red line linking from the top of the body to the tail. If there is a red line, it's a rainbow trout, if not, it's a salmon.
2. The difference between the flesh of the fish. The color of rainbow trout meat is light orange, and its fat line stripe is narrower and not very obvious. Salmon meat color is brighter orange-red, and it has wider stripes, very obvious.
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Rainbow trout and salmon specific differences
1, body size. Salmon is larger than rainbow trout, salmon is usually over 1 meter, rainbow trout's is much smaller than salmon.
2, the price of fish. The market price of rainbow trout is about 30 yuan / pound, but the city of Norway salmon prices are very high, probably ranging from 80 to 100 yuan / pound. If you buy a lower price of sashimi, it is likely to be rainbow trout, or not fresh salmon.
3, meat quality difference. Norwegian salmon because it is the survival of the Atlantic Ocean inside the sea fish, its fat content is higher, so the white fat lines are wider and obvious. Rainbow trout is a freshwater fish, so it has less fat content, the fat line is thinner and more fuzzy. There is also the thickness of the sliced fish, Norwegian salmon meat is relatively soft and tender, usually cut into 0.7 ~ 1cm thickness, and this thickness is already relatively thick. However, rainbow trout meat is relatively hard, if cut so thick, it will be more difficult to bite. Salmon flesh is brightly colored, while rainbow trout flesh is dull in color and has no luster.
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4, the texture of the fish. High-quality salmon meat is delicate and soft, so you can cut very thick, firm and full of meat, fish oil, elasticity, taste is very q elastic smooth, salmon fish meat and a special aroma. Rainbow trout fish meat is harder, do not have this characteristic.
4, type. Salmon is grown in the sea fish, rainbow trout is China's freshwater fish. So the species are totally different.